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Anti sm

Pooja Arora, Monika Malik, Ruchi Sachdeva, Latika Saxena, Joy Das, Vishnampettai G Ramachandran, Rahul Pal
While apoptotic debris is believed to constitute the original antigenic insult in lupus (which is characterized by a time-dependent diversification of autoreactivity), whether such debris and autoantibodies specifically recognizing its constituents, mediate differential effects on innate and humoral responses in lupus-prone mice is currently unknown. Apoptotic blebs (as opposed to cellular lysate), preferentially enhanced the maturation of dendritic cells (DCs) from bone marrow precursors drawn from lupus-prone mice...
October 26, 2016: Clinical and Experimental Immunology
Petra D Cravens, Rehana Z Hussain, William A Miller-Little, Li-Hong Ben, Benjamin M Segal, Emily Herndon, Olaf Stüve
BACKGROUND: Interleukin (IL)-12 and IL-23 are heterodimers that share the p40 subunit, and both cytokines are critical in the differentiation of T helper (Th)1 and Th17 cells, respectively. Th1 and Th17 effector cells have been implicated in the pathogenesis of experimental autoimmune encephalitis (EAE), an animal model of the human central nervous system (CNS) autoimmune demyelinating disorder multiple sclerosis (MS). However, ustekinumab, a monoclonal antibody (mAb) against p40 failed to show efficacy over placebo in a phase II clinical trial in patients with MS...
2016: PloS One
Yunes Panahi, Danial Roshandel, Mohammad Mehdi Sadoughi, Mostafa Ghanei, Amirhossein Sahebkar
Sulfur mustard (SM; mustard gas) is a classic chemical warfare agent that has been used in several wars and is still a potential threat especially in the Middle-East region. Victims experience acute symptoms in air-exposed organs including skin, respiratory tract and the eyes. Survivors of the acute stage might develop chronic or delayed-onset complications in the exposed organs. The exact mechanism(s) of SM-induced tissue damage is still unknown, however DNA alkylation and oxidative damage are the most relevant mechanisms...
October 21, 2016: Current Pharmaceutical Design
Ma Ke, Xi Chen, Jia-Cheng Chen, Ying Wang, Xi-Meng Zhang, Fan Huang, Jun-Jiong Zheng, Xiong Chen, Wei Yu, Ke-Ling Cheng, Yan-Qing Feng, Huai-Yu Gu
Rifampicin, a broad-spectrum antibiotic, has neuroprotective, immunosuppressive, and anti-inflammatory properties. However, the effect of rifampicin on autoimmune disorders of the nervous system is not clear. In this study, we investigated whether rifampicin was beneficial for myelin oligodendrocyte glycoprotein peptide (MOG33-35 )-induced female C57BL/6 experimental autoimmune encephalomyelitis (EAE) mice, the well-established animal model of multiple sclerosis (MS). Rifampicin treatment (daily from the first day after EAE immunization) remarkably attenuated clinical signs and loss of body weight, which are associated with suppression of inflammatory infiltration and demyelination in spinal cords of EAE mice...
October 23, 2016: Journal of Neurochemistry
Nicolas Argy, Gwladys I Bertin, Jacqueline Milet, Véronique Hubert, Jérôme Clain, Sandrine Cojean, Pascal Houzé, Nicaise Tuikue-Ndam, Eric Kendjo, Philippe Deloron, Sandrine Houzé
OBJECTIVES: Severe Plasmodium falciparum malaria (SM) involves cytoadhesion of parasitized red blood cells, mediated by P. falciparum erythrocyte membrane protein 1, which are encoded by var genes. Expression of var gene group A and B or encoding domain cassettes DC4, DC5, DC8 and 13 has been implicated in SM in African children, but no data exist in the context of imported malaria. The aim of this study was to investigate var gene expression linked to clinical presentation and host factors in SM imported in France...
October 20, 2016: Clinical Microbiology and Infection
Chen Cheng, Ying Jiang, Xiaodong Lu, Fu Gu, Zhuang Kang, Yongqiang Dai, Zhengqi Lu, Xueqiang Hu
BACKGROUND: Acute brainstem syndrome (ABS) may herald multiple sclerosis (MS), neuromyelitis optica (NMO), or occur as an isolated syndrome. The aquaporin 4 (AQP4)-specific serum autoantibody, NMO-IgG, is a biomarker for NMO. However, the role of anti-AQP4 antibody in the conversion of ABS to NMO is unclear. METHODS: Thirty-one patients with first-event ABS were divided into two groups according to the presence of anti-AQP4 antibodies, their clinical features and outcomes were retrospectively analyzed...
October 21, 2016: BMC Neurology
Animesh Pardanani
: Disease overview:Systemic mastocytosis (SM) results from a clonal proliferation of abnormal mast cells (MC) in one or more extra-cutaneous organs. DIAGNOSIS: The major criterion is presence of multifocal clusters of morphologically abnormal MC in the bone marrow. Minor diagnostic criteria include elevated serum tryptase level, abnormal MC expression of CD25 and/or CD2, and presence of KITD816V. Risk stratification: The 2008 World Health Organization (WHO) classification of SM has been shown to be prognostically relevant...
November 2016: American Journal of Hematology
Ke-Wei Tian, Fan Zhang, Hong Jiang, Beibei Wang, Shu Han
Multiple sclerosis (MS) is a chronic neurological disorder that affects the central nervous system (CNS), and results in CNS inflammation and damage to myelin. In this study, we examined the possible synergistic effects of C16, angiopoietin-1 (Ang-1) and regeneration gene protein 2 (Reg-2) in alleviating inflammation in an acute experimental autoimmune encephalomyelitis (EAE) model. We employed multiple histological, morphological and iconographic assays to examine the effect of those drugs on disease onset, clinical scores and behavioral deficits...
October 19, 2016: Journal of Anatomy
Nabil K El Ayoubi, Samia J Khoury
Multiple sclerosis (MS) is an autoimmune demyelinating disorder of the central nervous system. Only a few biomarkers are available in MS clinical practice, such as cerebrospinal fluid oligoclonal bands and immunoglobulin index, serum anti-aquaporin 4 antibodies, and serum anti-John Cunningham virus antibodies. Thus, there is a significant unmet need for biomarkers to assess prognosis, response to therapy, or potential treatment complications. Here we describe emerging biomarkers that are in development, focusing on those from peripheral blood...
October 18, 2016: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
Paolo Ghensi, Alessandro Cucchi, Luca Creminelli, Cristiano Tomasi, Barbara Zavan, Carlo Maiorana
INTRODUCTION: The purpose of this prospective randomized controlled clinical trial was to evaluate the effect of oral administration of bromelain on discomfort after mandibular third molar surgery. MATERIALS AND METHODS: Eighty-four consecutive patients requiring surgical removal of a single mandibular impacted third molar under local anesthesia were randomly assigned to receiving no drug (control group, Group A), postoperative 40 mg bromelain every 6 hours for 6 days (Group B), preoperative 4 mg dexamethasone sodium phosphate as a submucosal injection (Group C), and preoperative 4 mg dexamethasone sodium phosphate as a submucosal injection plus postoperative 40 mg bromelain every 6 hours for 6 days (Group D)...
October 14, 2016: Journal of Craniofacial Surgery
Mathew Clement, James A Pearson, Stephanie Gras, Hugo A van den Berg, Anya Lissina, Sian Llewellyn-Lacey, Mark D Willis, Tamsin Dockree, James E McLaren, Julia Ekeruche-Makinde, Emma Gostick, Neil P Robertson, Jamie Rossjohn, Scott R Burrows, David A Price, F Susan Wong, Mark Peakman, Ania Skowera, Linda Wooldridge
CD8(+) T-cells play a role in the pathogenesis of autoimmune diseases such as multiple sclerosis and type 1 diabetes. However, drugs that target the entire CD8(+) T-cell population are not desirable because the associated lack of specificity can lead to unwanted consequences, most notably an enhanced susceptibility to infection. Here, we show that autoreactive CD8(+) T-cells are highly dependent on CD8 for ligand-induced activation via the T-cell receptor (TCR). In contrast, pathogen-specific CD8(+) T-cells are relatively CD8-independent...
October 17, 2016: Scientific Reports
Thangavelu Soundara Rajan, Sabrina Giacoppo, Oriana Trubiani, Francesca Diomede, Adriano Piattelli, Placido Bramanti, Emanuela Mazzon
Conditioned medium derived from mesenchymal stem cells (MSCs) shows immunomodulatory and neuroprotective effects in preclinical models. Given the difficulty to harvest MSCs from bone marrow and adipose tissues, research has been focused to find alternative resources for MSCs, such as oral-derived tissues. Recently, we have demonstrated the protective effects of MSCs obtained from healthy human periodontal ligament tissue (hPDLSCs) in murine experimental autoimmune encephalomyelitis model. In the present in vitro study, we have investigated the immunomodulatory and neuroprotective effects of conditioned medium obtained from hPDLSCs of Relapsing Remitting- Multiple sclerosis (RR-MS) patients on NSC34 mouse motoneurons stimulated with lipopolysaccharide (LPS)...
October 11, 2016: Experimental Cell Research
Jennifer N Hahn, Deepak K Kaushik, Manoj K Mishra, Jianxiong Wang, Claudia Silva, V Wee Yong
Extracellular matrix metalloproteinase inducer (EMMPRIN, CD147) is a transmembrane glycoprotein that is upregulated on leukocytes in active lesions in multiple sclerosis (MS) and its animal model, experimental autoimmune encephalomyelitis (EAE). Administration of anti-EMMPRIN Abs reduces the severity of EAE. Minocycline is a tetracycline antibiotic with immune-modulatory properties that decreases the severity of EAE; it was recently found to attenuate the conversion from a first demyelinating event to clinically definite MS in a phase III trial...
October 12, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
Mark D Willis, Trevor P Pickersgill, Neil P Robertson, Richard W J Lee, Andrew D Dick, Ester Carreño
PURPOSE: The purpose of the study was to report a case of multiple sclerosis (MS)-associated uveitis refractory to conventional immunosuppressants, with subsequent remission following treatment with alemtuzumab. METHODS: Case report Patient was treated with intravenous alemtuzumab, a lymphocyte depleting anti-CD52 monoclonal antibody that has recently been approved for use in relapsing MS. RESULTS: A 17-year-old female presented with bilateral optic neuritis and subsequently bilateral intermediate uveitis and secondary macular oedema...
October 11, 2016: International Ophthalmology
Kenichi Yamanaka, Hiroyuki Miyatani, Yukio Yoshida, Takehiro Ishii, Shinichi Asabe, Osamu Takada, Mitsuhiro Nokubi, Hirosato Mashima
BACKGROUND: Gastric foveolar hyperplastic polyps (GFHPs) are common findings in clinical practice. GFHPs commonly arise in a background of chronic atrophic gastritis, including autoimmune gastritis (type A gastritis), and have a potential risk of malignant transformation. CASE PRESENTATION: In 2005, a 55-year-old Japanese woman underwent upper endoscopy at another hospital and was found to have a pedunculated polyp (10 mm in diameter) on the greater curvature of the lower gastric body...
October 12, 2016: BMC Gastroenterology
Shohei Murakami, Hozumi Motohashi
The KEAP1-NRF2 system is an inducible molecular mechanism enhancing transcriptions of several cytoprotective genes in response to xenobiotics and oxidative stress. Recently, the KEAP1-NRF2 system has been suggested to directly regulate a portion of the genes related to cell proliferation and differentiation. In hematopoietic cells, NRF2 activation plays a role in maintenance and cell fate determination of hematopoietic stem cells, as well as in maturation processes and homeostasis of megakaryocytes and erythrocytes...
2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
Tetsuya Akaishi, Ichiro Nakashima, Takayuki Takeshita, Kimihiko Kaneko, Shunji Mugikura, Douglas Kazutoshi Sato, Toshiyuki Takahashi, Toru Nakazawa, Masashi Aoki, Kazuo Fujihara
We compared the clinical features of optic neuritis (ON) that are frequently observed in various central nervous system demyelinating diseases, including multiple sclerosis (MS), anti-aquaporin 4 (AQP4) antibody- and anti-myelin oligodendrocyte glycoprotein (MOG) autoantibody-related diseases. Almost all the AQP4-ON patients were female, whereas half of the MOG-ON patients were male. The ON-onset age was younger in MS-ON and was older in AQP4-ON. The ON-lesion detected using optic MRI in the acute phase was longer in MOG-ON and showed severe swelling and twisting...
October 15, 2016: Journal of Neuroimmunology
Alexandru Movila, Hani Mawardi, Kazuaki Nishimura, Tomomi Kiyama, Kenji Egashira, Jae-Young Kim, Alessandro Villa, Hajime Sasaki, Sook-Bin Woo, Toshihisa Kawai
Prior consensus held that medication-related osteonecrosis of the jaw (MRONJ) lesion was composed of necrotic bone; however, more recent studies have identified inflammatory infiltrates in the lesion. Herein, we report that remarkably elevated infiltrating γδT cells (90% of lymphocytes) express Semaphorin 4D (Sema4D) in human patient with MRONJ lesion, whereas γδT cells only account for 2-5% of lymphocytes in blood. Importantly, Sema4D is implicated in the pathogenesis of T cell-mediated inflammatory diseases, such as rheumatoid arthritis and multiple sclerosis...
October 5, 2016: Biochemical and Biophysical Research Communications
Irene Del Pilar Moreno Torres, Antonio García-Merino
INTRODUCTION: The therapeutic utility of the anti-CD20 monoclonal antibodies (mAbs) is currently being evaluated in multiple sclerosis (MS) in line with the better understanding of the role of B lymphocytes in MS pathogenesis. AREA COVERED: We conducted a literature search using Medline/Pub Med database of basic research and available controlled trials about anti-CD20 mAbs in MS. Additionally, ongoing studies were identified in the database. B cells exert multiple inflammatory and regulatory functions playing an important role in MS pathogenesis as is demonstrated by the production of autoantibodies, infiltration of B cells in MS lesions and the formation of ectopic B cell follicle-like structures in meninges, among others...
October 10, 2016: Expert Review of Neurotherapeutics
Alexey Boyko, Mikhail Melnikov, Rustam Zhetishev, Mikhail Pashenkov
OBJECTIVE: Multiple sclerosis (MS) is a demyelinating, presumably autoimmune disease of the central nervous system. Biogenic amines may participate in MS pathogenesis modulating immune cell activity and cytokine production. METHODS: Forty-three patients with relapsing-remitting MS were examined. Serotonin (SE), norepinephrine (NE) and epinephrine (EPI) concentrations in sera were measured by ELISA. The functional activity of Th17 and Th1 cells was assessed by the ability of peripheral blood mononuclear cells (PBMCs) to produce interferon-gamma (IFN-γ) and interleukin-17 (IL-17) and cell proliferation upon stimulation with microbeads coated with anti-CD3 and anti-CD28 antibodies...
October 7, 2016: Neuroimmunomodulation
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